| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 279.74 | USD | 20250802 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 272.74 | USD | 20250802 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 188.82 | USD | 20250802 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 279.74 | USD | 20250801 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 272.74 | USD | 20250801 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 265.75 | USD | 20250801 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 188.82 | USD | 20250801 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 209.8 | USD | 20250801 |
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 279.74 | USD | 20250731 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 188.83 | USD | 20250731 |